Pumping-engine.



No. 805,267. PATENTED NOV. 21, 1905. F. w. DAVIS & A. W. KING.

PUMPING ENGINE.

APPLICATION FILED 001. 17, 1904.

' llllllllllllll w Ill l l .lllflll.

iililllllllllllllllii 1 y B i r;9

z L9" V ml fig imimm lugmm (1 J] A9 1 f, ,3 f G lllil I I I 25 fineeawr f A ght/672107 5 aabw AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA ac UNITED STATES PATENT oEEIoE.

FRANK WV. DAVIS AND ALBERT W. KING, OF BRADFORD, PENNSYLVANIA.

PUMPING-ENGINE.

Specification of Letters Patent.

Patented Nov. 21, 1905.

Application filed October 1'7, 1904. Serial No. 228,782.

To all whom, it puny concern:

Be it known that we, FRANK WV. DAVIS and ALBERT TV. KING, citizens of the United States, residing at Bradford, county ofMcKean, State of Pennsylvania, have invented a certain new and useful Improvement in Pumping-Engines; and we declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

Our invention relates in general to pumping-engines, and more particularly to vertically reciprocating plunger pumping -engines.

In utilizing vertically-reciprocating-plunger pumping-engines in connection with tubular wells by attaching the engine to the surface delivery-pipes of the wells it has heretofore been necessary to extend the pumpingrod upwardly through a stufling-box in the structure which supports the engine upon the pipe of the well. This construction necessitates the engine being supported above the surface-pipe of the well a distance at least as great as the stroke of its piston, as the coupling between the piston-rod and pumping-rod cannot enter the stuffing-box in the supporting structure. The supporting structure interposed between the well and engine has therefore necessarily been of such height as to be objectionable owing to the severe work imposed upon the engine and to the vibrations incident to the reciprocation of the pumping-rod, which tend to sway the pumping-engine and its supporting structure.

The primary object of our invention is to provide a vertically reciprocating plunger pumping-engine for use in connection with tubular wells in which the above-mentioned objection will be avoided by reason of the compact and strong character of the structure for supporting the engine upon the pipe of the well.

A further object of our invention is to provide a vertically-reciprocating-plunger pumping-enginefor use in connection with tubular.

Wells in which the supporting structure for mounting the engine upon the pipe of the well will permit true alinement and concentricity being quickly obtained between the piston-rod and the tubular well.

A still further object of our invention is to provide means for rigidly attaching a reciprocating pumping-engine to the delivery-pipe of a tubular Well which will be simple in construction, inexpensive in manufacture, and efficient in use.

Our invention generally described consists in a horizontal yoke having a vertical interiorly-sorew-threaded socket in its lower surface, into which the delivery-pipe of a tubular well is screwed, the yoke also having a concentric communicating screw-threaded socket in its upper surface, in which a stuffing-box is screwed, columns interposed between and rigidly connecting the ends of the yoke and the cylinder-head of a vertically-reciprocating engine, the engine piston-rod being extended through the stuffing-box on the yoke and coupled to the pumping-rod below the stuffing-box.

Our invention will be more fully described hereinafter with reference to the accompanying drawings, in which the same is illustrated as embodied in a convenient and practical form, and in which- Figure 1 is a vertical central sectional view,

parts being shown in elevation; and Fig. 2, a

plan view of the yoke.

The same reference characters are used to designate the same parts in the two figures of the drawings.

Reference-letter A designates the lower end of the cylinder of a vertical pumping-engine, the cylinder-head A of which is provided with laterally-projecting lugs a a having vertical holes therethrough.

B designates the piston-rod, which extends through a stufiing-box (0 depending from the cylinder-head, and is connected to a piston within the cylinder.

D designates a yoke having a Vertical screw-threaded socket f in its under surface, into which is screwed the delivery-pipe of a tubular well F. A second interiorly-screwthreaded socket d is provided in the upper surface of the yoke D and is located concentrically with respect to the socket (Z, with which it communicates through an interposed chamber (Z Vertical columns E and E are interposed between and rigidly unite the ends of the yoke D and the cylinder-head A. The lower ends of the columns are preferably reduced, as shown at c and 0 respectively, such reduced portions passing through vertical holes in lugs D and D formed integrally with the ends of the yoke D. The ends of the reduced portions of the columns E E, which depend below the lugs on the ends of the yoke, are

IIO

screw threaded and provided with nuts 0, which cooperate with the annular shoulders formed by reducing the lower ends of the columns to rigidly connect the columns to the yoke. The upper ends of the columns pass through the holes in the respective lugs a a, which project laterally from the cylinderhead, and are rigidly united thereto by nuts (0.

A stufiing-box G is provided with an exteriorly-serew-threaded lower end, which is screwed into the socket (Z in the upper surface of the yoke D. The upper end of the stuffing-box is exteriorly-screw-threaded, as shown at g, about which is screwed a gland H. Packing material l: is placed. within the stuffing-box and closely surrounds the piston-rod B, which extends through the stuffing-box. A compression-sleeve K is located within the tubular portion of the stuiiingbox and is forced downwardly against the packing material by means of the gland H, by which it is engaged at its upper end.

The lower end of the piston-rod B is connected by any suitable. form of coupling with the pumping-rod (J. For convenience we have shown the lower end bof the piston-rod as screw-threaded and received within a screwthreaded socket at the upper end of the pumping-rod 0..

It will be observed that the screw-threaded sockets (Z and (Z are located concentrically within a yoke, and consequently the stufiingbox G and surface delivery-pipe F of the well are located concentrically with respect to each other by merely uniting the same to the yoke D, so that a practically perfect alinement between the piston-rod B and delivery-pipe F results. In Fig. l we have shown the pistonrod at the extreme upper end of its stroke, from which it will be seen that the lower end thereof, to which is united the upper end of the pumping-rod C, does not enter the stuffing-box G. By this construction it is possible to make the supporting structure interposed between the pipe of the well and the cylinder-head extremely compact and strong, inasmuch as the coupling between the pistonrod and pumping-rod is below the stuflingbox Gr, and consequently there need not be a space between the stufling-box a of the cylinder and the stuffing-box G greater than the stroke of the piston, which would obviously be necessary if the pumping-rod extended through the stuffing-box Grand was united to the piston-rod above the same.

As the holes through the lugs D and D of the yoke aline with the holes through the lugs 64 a of the cylinder-head, the packing-boxes a and G are brought into and retained in perfect vertical alinement by means of the columns E and E so that the mere act of uniting the upper ends of the columns to the cylinder-head and the lower ends thereof to the yoke secures a perfect alinement of the stufiingboxes, so that the engine will operate under the most favorable condition.

From the foregoing description it will be observed that we have invented an improved means for rigidly uniting a vertical reciprocating pumping-engine to the surface end of atubular well which though simple and strong in construction permits the engine being quickly and securely mounted upon the well in accurate concentricity therewith.

Having now fully described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. The combination with a vertically-reciprocating-plunger pumping-engine having a stuffing-box through which the piston-rod reciprocates, of a structure for operatively supporting said engine upon a well comprising a second stuffing-box through which the outer end of the piston-rod extends throughout its stroke, a yoke uniting said stufling-box to the surface end of the delivery-pipe of the well, and means for rigidly connecting said yoke to the cylinder to maintain said stuffing-boxes in alinement.

2. The combination with a vertically-reciprocating-plunger pumping-engine comprising a cylinder having a stuffing-box through which the piston-rod reciprocates, of a structure for operatively supporting said engine upon a well comprisinga second stuffing-box through which the outer end of the piston-rod extends throughout its stroke, a yoke uniting said stulfing-box to the surface end of the deliverypipe of the well, and vertical columns interposed betweenand rigidly uniting the ends of said yoke and said cylinder. I

3. The combination with a vertically-reciprocating-plunger pumping-engine comprising acylinder havinga stuffing-box through which the piston-rod reciprocates, of a structure for operatively supporting said engine upon a well comprising a second stufiing box through which the outer end of the piston-rod extends throughout its stroke, a yoke uniting said stuffing-box to the surface end of the deliverypipe of the well, and vertical columns having reduced upper and lower ends passing through alined holes in the sides of said yoke and in said cylinder.

4:. The combination with a vertically-reciprocating-plunger pumping-engine, of a structure for operatively supporting said engine upon a well comprising an integral yoke, a stuffing-box through which the lower end of the piston-rod extends throughout its stroke, means for directly mounting said yoke upon the surface end of the delivery-pipe of a tubular well, means for rigidly supporting the engine above said yoke, and means located at all times below said yoke for uniting a pumping-rod to the lower end of said piston-rod.

5. The combination with a vertically-reciprocating-plunger pumping-engine, of a struca well comprising a yoke having verticallyconcentric interiorly-screw-threaded sockets,

a stufling-box surrounding the piston-rod supported in the upper one of said sockets, the lower socket surrounding the surface end of the delivery-pipe of the well, and vertical columns having reduced upper and lower ends passing through alined holes in the ends of said yoke and in said cylinder.-

In testimony whereof we sign this specification in the presence of two witnesses.

FRANK W. DAVIS. ALBERT W. KING.

Witnesses:

GEO. H. MILLS, E. L. ADAMS. 

